4-1 Exhaust Headers Downpipes Collector Link Pipe Fits: Suzuki GSXR1000 L2 2012, L3 2013, L4 2014, L5 2015, L6 2016 models - Upgrade your heavy 4-2 system with modern ultra light 4-1 headers. - These accept slip on silencers/mufflers with a 51.5mm/2inch opening that secures with a clamp. - Less weight with improved gas flow - Eliminates restriction (exhaust emissions are not part of the UK motorcycle MOT). - Lambda sensor (O2 sensor) compatible, accepts larger M18 sensor used on many race ECU's - Adapter included to accept the standard sensor, blanking bolt also included for an alternative set up (we recommend this set up without a Lambda sensor is completed by a qualified technician). - Servo rotor arm included to prevent fault codes. This .
